Climate Insights for Bamu

, Western Province, Papua New Guinea

Hottest
December
32°C peak
Coldest
August
23°C low
Wettest
March
351mm rain
Best to Visit
Varies throughout year

Climate Overview

The climate in Bamu is hot. The average annual temperature is 26°C and approximately 3033mm of precipitation falls per year. Bamu receives a notable amount of rainfall throughout the year, including during its driest month. Bamu sits near the equator, so seasonal temperature differences are minimal throughout the year.

Temperature

10° 20° 30° 40° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Max: 32° Average: 27° Min: 24° Feb Max: 32° Average: 27° Min: 24° Mar Max: 31° Average: 27° Min: 24° Apr Max: 31° Average: 27° Min: 24° May Max: 30° Average: 26° Min: 24° Jun Max: 29° Average: 26° Min: 24° Jul Max: 28° Average: 25° Min: 23° Aug Max: 28° Average: 25° Min: 23° Sep Max: 29° Average: 26° Min: 23° Oct Max: 30° Average: 26° Min: 24° Nov Max: 31° Average: 27° Min: 24° Dec Max: 32° Average: 27° Min: 25°
Max
Average
Min

Bamu has relatively stable temperatures year-round, staying within a 9°C range. The warmest month is December, when average highs reach 32°C and the mean temperature sits around 27°C. August is the coolest month, with minimum temperatures around 23°C and an average of 25°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows.

Precipitation

0mm 50mm 100mm 150mm 200mm 250mm 300mm 350mm 400mm Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Precipitation: 300mm Feb Precipitation: 302mm Mar Precipitation: 351mm Apr Precipitation: 346mm May Precipitation: 324mm Jun Precipitation: 201mm Jul Precipitation: 153mm Aug Precipitation: 126mm Sep Precipitation: 175mm Oct Precipitation: 208mm Nov Precipitation: 219mm Dec Precipitation: 328mm
Precipitation

Bamu is a very wet location, receiving approximately 3033mm of precipitation annually, which averages out to around 253mm per month. The wettest month is March, averaging 351mm of rainfall. April and December also tend to see above-average precipitation. The driest month is August, with just 126mm. That's 226mm less than March, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.

Wind

0km/h 5km/h 10km/h 15km/h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Wind Speed: 11km/h Feb Wind Speed: 12km/h Mar Wind Speed: 11km/h Apr Wind Speed: 9km/h May Wind Speed: 11km/h Jun Wind Speed: 12km/h Jul Wind Speed: 13km/h Aug Wind Speed: 14km/h Sep Wind Speed: 14km/h Oct Wind Speed: 11km/h Nov Wind Speed: 9km/h Dec Wind Speed: 10km/h
Wind Speed

Bamu is relatively calm, with an average annual wind speed of 11km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is September, averaging 14km/h, though still comfortable for most outdoor activities. The calmest conditions occur in April, with average winds dropping to 9km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 13km/h in winter, 11km/h in spring, 11km/h in summer, 10km/h in autumn.

Seasons

Winter
Dec 21
Spring
Sep 23
Summer
Dec 21
Autumn
Mar 20

90 days until Winter

It is currently autumn in Bamu, which began on March 20, 2026. Bamu sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in December at around 32°C, while the coldest stretch bottoms out in August near 23°C. Winter is next, beginning on June 21, 2026 — 90 days from now.

Spring

Temperatures range from 23 to 31°C. Rainfall is heavy, totalling around 602mm across the season with a monthly average of 201mm. Winds are generally light, averaging 11km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.

Summer

Temperatures range from 24 to 32°C. Rainfall is heavy, totalling around 930mm across the season with a monthly average of 310mm. Winds are generally light, averaging 11km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.

Autumn

Temperatures range from 24 to 31°C. Rainfall is heavy, totalling around 1022mm across the season with a monthly average of 341mm. Winds are generally light, averaging 10km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.

Winter

Temperatures range from 23 to 29°C. Rainfall is heavy, totalling around 479mm across the season with a monthly average of 160mm. Winds are generally light, averaging 13km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.

Monthly Climate Data

The table below shows monthly climate averages for Bamu based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
24 °C
32 °C
11 km/h
300 mm
0 cm
Feb
24 °C
32 °C
12 km/h
302 mm
0 cm
Mar Current
24 °C
31 °C
11 km/h
351 mm
0 cm
Apr
24 °C
31 °C
9 km/h
346 mm
0 cm
May
24 °C
30 °C
11 km/h
324 mm
0 cm
Jun
24 °C
29 °C
12 km/h
201 mm
0 cm
Jul
23 °C
28 °C
13 km/h
153 mm
0 cm
Aug
23 °C
28 °C
14 km/h
126 mm
0 cm
Sep
23 °C
29 °C
14 km/h
175 mm
0 cm
Oct
24 °C
30 °C
11 km/h
208 mm
0 cm
Nov
24 °C
31 °C
9 km/h
219 mm
0 cm
Dec
25 °C
32 °C
10 km/h
328 mm
0 cm
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Metric (°C, km/h)